Did you wait 24 hours?

Please go to your top landing pages in Google analytics.

Analytics lists threads like this:
/forum/showthread.php?t=92324

By default you will see the 10 top landing pages. Use the drop down to see more rows.

Top landing pages are important to be aware of, because its possible that another site, DIGG, Reddit, various social bookmarking sites or a certain search engine is sending major traffic to your site. If your staff is aware of it then they can come into action and improve the pages that are receiving such heavy traffic. Otherwise your site may get tens of thousands visitors on a mediocre page. Without improvement those visitors may leave right after they arrive.

The same goes for top exit pages. You can find them here in Google Analytics. If you know what your top exit pages are, then you know where your weak spots are. If thousands of visitors leave on specific pages, then its good to fix it.

Off course its possible for a webmaster to go to Analytics look up the threadID and then find each thread, but that's very tedious and its much better if each moderator can see in a thread if the thread is a top exit page.

So it would be very nice if you could add a function that shows a message or image to moderators (can_moderate) if a thread is a top exit page or a top entry page.

Does this make sense?

I would have to make your forums login to Google with your login to get that information.

Thats weird. The urls should work for any Google Analytics account. You need to first login here: https://www.google.com/analytics/home/ and then you should be able to access your top landing pages and top exit pages.

Or do you mean you do not have an Analytics account?

If I was to make this mod work with stuff inside the Google Analytics control panel.
Then each site that installs this would have to have the site login to automatically mark threads as 'Top entry pages' and 'Top exit pages'. There is no way to get that info with out making the site login to Google.

I would rather not do that.

Yes, a login would be needed. Though that can be done securely. Similar to vbSEO has done the login:
vBSEO LiveStats: On-Demand Search Engine Performance Reports

This doesn't work on my site.. . I just followed the instructions, opened an Google analytics account, registered my site name there, and still waiting for something to happen.. Sorry for being such an idiot but am i missing something here.. :(

Has it been 24 hours?

From Google:
Once you've installed your tracking code, you should allow up to 24 hours for data to appear in your account.

yes it's been more than 24 hrs..

Did you check to make sure the code is in the footer?